Ohio's state flag was adopted in 1902 and is the only state
flag that is not rectangular. Architect John Eisemann designed
the Ohio state burgee (a pennant with a swallowtail tip.)
The "O" in the center of the blue field is thought
to represent both the name Ohio and the buckeye. The buckeye
is a round nut from the buckeye tree found in abundance in
Ohio giving it its nickname "The Buckeye State." Thirteen
white stars surround the letter O representing the original
thirteen states. Four separate stars sit alone to the rightmost
part of field, representing the four states joining the Union
after the original thirteen: Vermont, Kentucky, Tennessee,
and Ohio. Five red and white stripes complete the Ohio state
flag.

Annin state flags are made from 100% SolarMax nylon. This
material, developed especially for the flag industry, is
engineered to resist damage from the sun's UV rays.